| 초록 |
This study was to investigate the production of combustion toxic gases of pinus rigida specimens treated with pyrophosphoric acid (PP)/ammonuium ion (4NH4+), methylenepiperazinomethyl-bis-phosphonic acid (PIPEABP) and PIPEABP/4NH4+. Each pinus rigida plates was painted in three times with 15 wt% in the aqueous solution. And then after these specimens were dried at room temperature. production of combustion toxic gases was examined by the cone calorimeter (ISO 5660-1). First-time to peak mass loss rate (1st-TMLR peak) treated with chemicals is delayed to (66.7〜250.0)% compared with untreated specimens. The production of peak carbon monoxide (CO peak), (0.0136〜0.0178)% and peak carbon dioxide (CO2 peak), (0.04432〜0.3648)% for test pieces treated with the chemicals, on the other hand, is higher than that for the virgin plate. |
